better left blank 

To intentionally omit information, so as to avoid both lying an giving too much information. Sometimes inferring that the person does not feel strongly, or that they wish to keep their views secret.

When Thomas got to the part of his online profile that asked religious preference, he thought that field was better left blank.

better left blank by yet another anonymous January 11, 2008

Buttered the back of my balls 

To soil your pants so badly it coats the unfortunate persons testicles.

Oh no...we have to go.

What do you mean we have to go?

I just buttered the back of my balls man.

Buttered the back of my balls by EZD May 2, 2015

Battery in your back 

1.Convincing a weak minded individual to handle a confrontation for you, usually through violence.
2. To persuade a individual to accomplish a task they were previously unaware of; or procrastinating on.

"I put the battery in your back", now go do what needs to be done.

Battery in your back by Rapwell617 December 9, 2008